Weather-strip.



7 0 9 am E D D E T N E T A P mm BR DT WS H H JT m W 7 I No. 872,434.

APPLIOATION FILED JULY 19, 1907.

v awmullo'c: Ia 2001a r,

Q/vitmeooea v T all whom it may concern:

. UNITED STATES PATENT oFFIcE.

WILL'J. LAWDER, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO CHAMBERLIN METAL WEATHER STRIP MICHIGAN.

Specification of LettersPatent.

WEATHER-STRIP.

Patented Dec. 3, 1907.

Application filed July 19. 1907. Serial No. 384622.

Be it known that I, WILL J. LAWDER, a

citizen of the United States, residing atl Washington, in the District of Columbia, have invented certain new and useful Improvements in Weather-Strips, of which the in accordance with the patent referred to,

and more especially in those instances where the strip is applied at the bottom of a window casing or frame with the rib of the strip in an upstanding position, the flange becomes bent over or distorted and its use impaired, for

' example, by a erson accidentally step ing thereon in was mgwindows or by str' mg the same with extraneous objects.

A convenient embodiment of theinvention resides intheiritroduction of a reinforcing or stiffening strip in the s ace between the parallel sides of the folde sealing rib or flange,

and said strip being of a width not only to fill said space, but to project a substantial distance beyond the plane f the inner edges of therib or. flange and int a kerf or groove formed in the window frame or sash wherebyto be securely anchored in the frame and lioldthe sealing rib or flange in proper position.--

j; The I details "in the construction and arrangernent of thieparts will be apparent from ient.-embodiment of the invention is the detailed description hereinafter contained whenread in connection with the accompanying drawings forming part hereof, and'wherein the before mentioned conventrated.

and sliding sash mounted therein, the improved strip being applied to thebottom of the frame and the lower rail of the sash grooved illusto receive the sealing rib or flange; and Fig. 2 1s an enlarged cross SGG'tlOIlEtl view.

' Referring more specifically to the draw? .ings, wherein like reference characters refer.

to corresponding parts in the two views, A represents the sash frame or casing, and B the slidable sash therein, these being of anyordinary or preferred construction.

The lower rail of the sash B is' provided with a groove C in its under surface longitu: dinally thereof for the reception of asealing rib or flange D secured to the up er'surface of the bottom of the frame or casm A. In the present instance this rib or ange is formed by bending a piece of sheet metal upon itself whereby the rib has a smooth outer edge and substantially parallel sides,

and offsettin the ed e portions of the sheet approximate y at rig t angles to the rib to rovide securing flanges E. The flanges are fastened to the frame in the usual manner, either by tacking them both to the frame or by tacking the outer flange and running the inner flange beneath the sill F as clearly shown in Fig. 2. In the-space on-the inte rior of and between the parallel sides of the sealing rib or flange I introduce a bracin or stiffening strip G, this strip being consi erably greater in width than the width of the sealing rib whereby to project to a substantial extent into the frame as at H, the latter being provided witha kerf or groove for that p11 ose. By this means it will be appreciate that the strip G is firmly anchored in the frame and that its projecting ortion will 1. A weather strip havin a sealing rib formedof sheet metal folde upon itself, a bracing or stiffeningimember therein of a width to project a substantial distance therewithout whereby to be anchored, and a securing flange integralwith and offset from said rib.

2. A weather strip havin a sealing rib formed of sheet metal folde upon itself,,a

bracing. or stifienin member therein of a width to project a su stantial distance there- Without whereby to be anchored, andsecuring flanges integral with and offset from opposite' sides of. said rib;

3. In combination with a frame having a groove formed. therein; a weather strip having a sealing rib arranged over said groove, said sealing rib bein formed of sheet metal bent upon itself, an a bracing orstifi'ening member introduced in the hollow interior of said rib and projecting outwardly therefrom and into the oove of said frame.

4. Iii-combination with a'frame having a groove formed therein; a weather strip having a sealing rib arranged over said groove, said sealing rib being formed of sheet metal bent upon itself, a bracing or stiffening member introduced in the hollow interior of said rib and projecting outwardly therefrom and into the groove of said frame, and a flange integral with said sealing rib oflset therefrom and securing the rib in position;

5. In combination with a frame having a groove formed therein, a Weather strip having a sealing rib arranged over said groove, said sealing rib being formed of sheet metal bent upon itself, a bracing or stiffening member introduced in the hollow interior of said rib and projecting outwardly therefrom and into the groove of said frame, and flanges integral with said rib and offset in opposite directions therefrom securing the same in place.

6. In combination with a frame, a weather strip member formed of sheet -metal bent upon itself to form a sealing rib and. secured to said frame, and having. a rigid bracing or stifiening member in the hollow interior thereof, said member being anchored at its edge ttp prevent lateral deflection of the sealmg r1 7. In combination with aframe, a weather strip member securedthereto and having a projecting hollow sealing part closed at its outer edge and a rigid bracing or stiffening member therein anchored to said frame to prevent lateral deflection of said projecting sealing part.

In testimony whereof I afiix my signature in'presence of two witnesses.

WILL J. LAWDER.

Witnesses:

MARSHALL L. FABER, JOHN T. A. BECKER. 

